Coloring stone



Oct. 8, 1935. c. E. CLEVELAND 2,016,593

COLORING STONE Filed July 8, 1935 3/ /4 g 25 2/6 lvenlor 76/76/705 Z 67? V6/C7/76L7 fizwaah Patented Oct. 8, 1935 "UNITED STATES? PATENT OFFICE 3 (llaims. (01. 41-39) My invention relates to a process of coloring 'stone and other solid matter, and an important object of my invention is to provide means for applying coloring matter to stone and other solid matter in a manner which makes the coloring of the same permanent and not subject to removal or dissipation by the elements.

It is also an important object of my invention to provide means for applying colored designs to stone monuments, cornerstones and the like, the coloring matter used being in either solid or liquid form, the stone referred to herein being eithernatural or artificial stone.

It is also an important object of my invention to provide a process of coloring and ornamenting natural or artificial stone by means of blasting either a combination of abrasive and coloring ma- .terial, or an abrasive coloring material, upon precutting of the design into the surface of the stone,

or other solid matter.

Other objects and advantages of my invention will be apparent from a reading of the following description in connection with the drawing, wherein for purposes of illustration I have shown a product of the method described herein.

In the drawing:- Figure l is a front elevational view of a grave marker having its face engraved and colored in a design, in accordance with the present invention.

Figure 2- is a horizontal sectionaljview through Figure 1 taken approximately on the line 2-2,

looking. downwardly.

[In the drawing the numeral 5 refers generally toa grave marker or tomb-stone having the front face *6 in which is sand-blasted or otherwise engraved or formed the design receiving surface I. On the surface 1 are formed by means of sand blasting or other suitable means thedesign forms 8and 9, which may be either raised or incised, and contrasted with their background eitherby coloring them or the background in the j manner set forth herein.

It will appear from the drawing that the design form 8 has a red or yellow portion Ill and a green portion I I, while the design form 9 has a red or pink portion I2 and a green portion l3.

As'already stated, the coloring material is apof the design by plain blasting, by blasting the coloring material alone into selected portions of the design. I a

The pigments employed whether alone or with the blasting abrasive enter the poresand otherwise penetrate the surface portion of the stone or other body whether natural or artificial, as indicated at M and IS in Figure '2, thereby becoming permanently fastened in the material of the stone or other solid matter.

The abrasive material which will usually be used will be a conventional type of abrasive such as quartz sand or ground steel. The pigmentsor coloring matter employed in the process are principally the three primary-and the three secondary colors. The primary and secondary colors are mixed and blended so that all colors including black may be prepared to be blown or blasted into the surface portion of the body. While I prefer to use coloring matter in dry form, I have found itpossible to utilize pigments or coloring matter in fluid or liquid form. Colorless pigments, for producing surface contrasts are also contemplated by me.

The three primary and the three secondary colors are employed, and by mixing these practically all colors including black may be obtained.

It is to be observed that a colored design in accordance with the invention may be given a polished surface as a result of the color blasting.

In accordance with the invention the coloring the coloring material is blasted by itself into the prepared design. Pigments successfully employed by me include the standard paint pigments, for the red, yellow, blue, green and other colors, iron oxide, lamp black, ground coaLand material is mixed with the blasting material, or I commercial black, and other similar or equivadesign to a certain extent. It will be obvious in p view of this that in the event-"of mixing a certain amount of cutting material with the pigment or coloring matter, that a greater abrasive and penetrating effect is produced by the color blasting. Blasting with wax may be used as a polishing abrasive and to render the coloring brighter and more permanent.

It will be obvious that the invention is applicable to the coloring or ornamentation of other materials than stone, such as glass and any other material capable of being penetrated to a sumcient depth by the color blasting.

Although I have shown and described herein a preferred embodiment of my invention, it is to be definitely understood that I do not desire to limit the application of the invention thereto, and any change or changes may be made in materials and ingredients, and in the sequence and duration of steps and operations, concerned in the process, Within the spirit of the invention and the scope of the subjoined claims.

What is claimed is:-

1. In a method of ornamenting a surface of 9.

solid body, the steps of producing a. colored design on said surface by applying to the surflce a blast including a combination of abrasive and coloring matter.

2. In a method of ornamenting a surface of a solid body, the steps of producing a colored design on said surface by applying to the surface a blast including a combination of abrasive and coloring matter and wax, I

3. An improvement in stone decorating which consists in cutting a design in the surface of a stone and then driving into the design a mixture of coal and an abrasive. 

